Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Nanoscale assembly of cellulose nanocrystals during drying and redispersion
Stockholms universitet.
Stockholms universitet.
Stockholms universitet.
Stockholms universitet.
Show others and affiliations
2018 (English)In: ACS Macro Letters, E-ISSN 2161-1653, Vol. 7, no 2, p. 172-177Article in journal (Refereed) Published
Abstract [en]

We have followed the structural evolution during evaporation-induced self-assembly of sulfonated cellulose nanocrystal (CNC) in the presence of H+ and Li+ counterions by small-angle X-ray scattering. Drying of CNC-H dispersions results in ordered films that could not be readily redispersed, while the CNC-Li films were disordered and prone to reswelling and redispersion. The scaling of the separation distance (d) between CNC particles and the particle concentration (c) shows that the CNC-H dispersions display a unidimensional contraction of the nematic structure (d ∝ c-1) during drying, while the CNC-Li dispersions consolidate isotropically (d ∝ c-1/3), which is characteristic for hydrogels with no preferential orientation. Temporal evolution of the structure factor and complementary dynamic light-scattering measurements show that CNC-Li is more aggregated than CNC-H during evaporation-induced assembly. Insights on the structural evolution during CNC assembly and redispersion can promote development of novel and optimized processing routes of nanocellulose-based materials.

Place, publisher, year, edition, pages
American Chemical Society , 2018. Vol. 7, no 2, p. 172-177
Keyword [en]
Cellulose, Cellulose derivatives, Dispersions, Drying, Evaporation, Hydrogels, Light scattering, Lithium, Nanocrystals, Self assembly, X ray scattering, Cellulose nano-crystals, Cellulose nanocrystal (CNC), Dynamic light scattering measurement, Evaporation induced self assemblies, Particle concentrations, Preferential orientation, Separation distances, Structural evolution, Lithium compounds, Cellulose Derivatives, Cellulose Film, Dispersions, Drying, Optical Scattering, Swelling
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:ri:diva-33611DOI: 10.1021/acsmacrolett.7b00964Scopus ID: 2-s2.0-85042367355OAI: oai:DiVA.org:ri-33611DiVA, id: diva2:1196081
Note

cited By 0

Available from: 2018-04-09 Created: 2018-04-09 Last updated: 2018-04-09Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus
By organisation
Bioeconomy
In the same journal
ACS Macro Letters
Chemical Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 6 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.33.0